LUBRICATING SYSTEM - L.4Fig. L.5.Removing the Lubricating Oil Pump.2.Remove the key from the keyway of the driveshaft.3.Unscrew the three screws which secure the endplate to the pump and remove the plate.Fig. L.6.Removing the "O" Sealing Ring from the Oil Pump.4.Carefully remove the drive and driven rotorsfrom the pump body.5.Remove the "O" sealing ring from the pumpbody (where fitted). See Fig. L.6.Inspection1.After thoroughly cleaning all the parts theyshould be examined for signs of cracking, wearor corrosion.2.Install the inner and outer rotors in the pumpbody, bearing in mind that the chamfered edgeof the outer rotor enters the pump body first.3.The clearances are checked as shown in Figs.L.7., L.8 and L.9.NOTE: The relevant clearances for thesedimensional checks are given on Page B.8,they are the clearances applicable to a newpump and are intended to be used as aguide. Should a lubricating oil pump beworn to such an extent that it adverselyeffects the working oil pressure, then areplacement pump should be obtained. Thecomponent parts of the pump itself are notsupplied individually,Fig. L.7.Checking Clearance between Inner and Outer Rotor.
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